Jacob felbeb



JACOB FE-LBER.

Improvement in Excelsior Machines;

Patented Nov. 24,1871

WITNESSES.

WJQEFQTURI Jkcm? Flm 5W: a any UNITED STATE JACOB FELBER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO HIMSELF AND ANDREW BBANDENBURGER, OF SAME PLACE.

IMPROVEMENT IN EXCELSIOR MACHINES.

Specification forming part of Letters Patent No. 120,866, dated November 14, 1871.

- To all whom it may concern:

' hereby declare that the following is a full and true description thereof, reference being had to the accompanying drawing and to the letters of ref erence marked thereon.

The object of this invention is to form an improved machine for making excelsior, though generally applicable for cutting wood for different purposes. The nature thereof relatesFirst, to the arrangement of a revolving disk or circular plate and providing it with cutters, cutter-heads, and stripping-knives, in combination with the gearing and feed mechanism. Second, in combination with the circular plate and its cutter devices, to the construction and arrangement of a stationary endless cam to guide the cutterheads to revolve in line with the material as required also, to the manner of operating the slide pieces carrying stripping-knives to cut parallel with the material. Third, to the construction and arrangenient of a regulating camwvheel on the shaft, and connecting said cam-wheel by a cammed lever to operate and regulate the action of the feed devices. Last, to certain details in the construction of parts, all of which will now more fully be described.

To enable those herein skilled to make and use my said invention I will now more fully describe the same, referring to- Figure 1 as a top plan; to Fig. 2 as a sectional bottom plan; to Fig. 3 as a side elevation to Fig. 4 as a detail section of feed devices}. and to Fig. 5 as an enlarged part detail of disk and cutter devices.

On a firm foundation are secured pillars'A to support the operating machine. On top of the pillars are secured in required sections cast-iron frames B, cast with a groove, a, and spreading ends, as at a, Fig. 1. Between the frame castings B, at relative distances to each other, are supported the boxes and feed mechanism, as follows: The boxes (l consist of side plates c c united by cross-plates 0 c and firmly bolted to side supports 0* 0", connecting the frame castings B, (see Fig. l.) The feed-boxesO are provided with feed,- rollers D and dogs D. The dogs D are hinged to the top of boxes 0 at d, and by means of a setscrew, 01, passing through part I) of frame B, are made adjustable, as shown in detaihTig. 4. The feed-rollers D above the dogs D operate by their shafts in proper journal bearings (1 secured to the side supports 0 -0 The feed-roller shafts at their outer ends carry the respective drivinggears E E. A shaft, E its journals properly operating in extension bearings c, secured to boxes (3, is arranged so that its right and left worms 0 0 gear respectively with driving-gears E E Near the end of the shaft E and loosely secured thereto is a lever-arm, F. Further at the end of the shaft E is secured a ratchet-wheel, fl A spring-pawl, j", pivoted to lever-arm F, actuates the ratchetwheel f, while a second spring-pawl, f pivoted to a proper bearing, f, secured to frames B, is made to follow up the movements of said ratchet-wheel, as indicated in Fig. 3.

The feed-boxes thus constructed, and provided with feed and gearing devices, as described, are operated as follows: The lever-arm F is provided with a pin, g, engaging in a slot, 9 of cammed lever G. The cammed lever G is constructed in the shape shown, its fulcrum pivoted at g to a proper bearing secured to a cross casting, H, which is bolted properly to the side supports 0 0 see Fig. 1. To operate such cammed lever G a vertical shaft, I, is arranged to turn in a proper mannerin the bed or foundation; also, by proper journal-bearings, supported by the cross casting H, said shaft at its upper end carries a camwheel, I. The cam-wheel I is castwith project ing incline cams z', and further said wheel is cast with a hub, #5 by means whereof and a setscrew, 6 said cam-wheel is secured adjustable to shaft 1 in manner shown in Figs. 1 and 3. Near its lower end the shaft I is provided with bevelwheels, and connected properly to be operated by the engine or power source in the usual manner. As the end of the cam-lever G is curved upward (see Figs. 1 and 3) it is acted upon by the downward-projecting cams i of the revolving cam-wheel I in such a manner that said lever G raises the lever-arm F, and this, by its pawl f actuates the ratchet-wheel f, which in turn partly revolves the gearing and feed devices.

The levers G and F by their own weight drop in ready operating position, and thus by the continued revolving action of the cam-wheel I, and intermittent motion imparted to levers G and F,

the gearing and feed devices are operated to feed the stuff or material to the cutters as required. It will be noted that, as the cam-wheel I is secured adjustably to shaft I, the feeding action of the feed devices can be regulated so that the material is fed to form coarse or thin work.

To perform the cuttin g operation there is arranged, in combination with the feed mechanism described, a revolving circular plate or'disk, J, provided with cutters,cutter-heads, and knives, as follows: The disk is cast with requirednumber of incline-positioned cutter-slots and hearings to receive the usual cutters j, which are adjustably secured by screw-bolts, (see Figs 1, 2, and 5.) Also, the rotary disk J is cast with round holes to receive the required number of cutter-heads J. The cutter-heads J are cast slotted to receive the stripping-knives j which are secured in sets adj ustably by set-screws in a proper slide piece, j in manner indicated in detail, Fig. 5. The slide pieces j are further provided with a pin, j to engage in the grooves a of the frames B, as hereinafter described. The cutter-heads J with slide pieces j are arranged flush with the rotary disk, the strippingknives being raised to perform their cutting action; and said cutterheads thus provided are supported to turn freely by pivot f in a suitable standard, j, bolted to the under side of the disk J, as shown in Fig. 3. Each cutter-head provided with stripping-knives thus arranged in the rotary disk J revolves with the same. In order, however, that each cutterhead shall rotate in position to allow the stripping-knives to cut in line with the material a guiding cam is arranged and constructed as follows: The guide-cam K is cast in duplicate parts 7; k in form and outline, as clearly shown in Fig. 2; the part I: being further east with radial arms fitted to pass round shaft I. The parts k k of the cam are united, forming a correspondingshaped endless slot, k see Fig. 2. To support the cam-guide K thus constructed to guide the cutter-heads the pillars A are provided with proper extension supports L, to which each part It k composing-cam K, is firmly bolted. To the cam K each cutter-head J is connected by means of an extension lever, 70 secured properly to cutter-heads; at its end said lever is provided with an anti-friction pulley, W, as indicated in Figs.

2 and 3. It is apparent that the peculiar camslot k guides the action of the lever 76 to revolve the cutter-headsJ inline with the feed-boxes or material; and further, that by means of its pin j each slide piece j is guided and retained in position to allow the stripping-knives to cut parallel with the material. There being shown in the drawingfour feed-boxes and six cutters, every two opposite knives or cutters perform their cutting action at the same time; also, as soon as each knife has done cutting the following knife begins.

My said improvements form a machine to produce better excelsior, by which more work can be produced, large strips or cutting work can be made, and otherwise in its operation and cutting action is more equal and true.

Having thus fully described my said invention, what I claim is- 1. The arrangement of a rotating disk, J, carrying cutters j, cutter-heads J, and strippingknives j in combination with feed-boxes and feed mechanism, substantially as and for the purpose described.

2. The combination and arrangement of a camguide, K, connecting lever 70, anti-friction roller k cutter-heads J, and rotary disk J and its outter devices, all constructed to operate substantially as and for the purpose described.

3. A cam-wheel,1, cast with cams i and secured adjustably to shaft I, cammed lever G, a ranged, in combination with the feed mechanism described, to operate as and for the purpose set forth.

4. The arrangement of shaft I, frame castings B with grooves a, rotating disk J, its cutters j, revolving cutter-heads J carrying strippingknives j and slide pieces j having pins j, connecting-lever 70, guiding-cam K, adjustable camwheel I, cammed lever Gr, when all said parts are combined with feed-boxes O, and their gearing and feed devices, to operate substantially as and for the purpose described.

In testimony of said invention I have hereunto set my hand.

JACOB FELBER.

ANDREW BRANDENBURGER. 17 4) 

